diff --git a/src/main/java/tavebalak/OTTify/error/ErrorCode.java b/src/main/java/tavebalak/OTTify/error/ErrorCode.java
index b3540e40..a7c7cdc4 100644
--- a/src/main/java/tavebalak/OTTify/error/ErrorCode.java
+++ b/src/main/java/tavebalak/OTTify/error/ErrorCode.java
@@ -39,15 +39,10 @@ public enum ErrorCode {
     GENRE_NOT_FOUND("장르를 찾을 수 없습니다."),
     USER_NOT_FOUND("유저를 찾을 수 없습니다."),
     OTT_NOT_FOUND("OTT를 찾을 수 없습니다."),
-
-
     PROGRAM_GENRE_NOT_FOUND("프로그램과 관련된 장르를 찾을 수 없습니다."),
     PROGRAM_NOT_FOUND("프로그램을 찾을 수 없습니다"),
-
     USER_FIRST_GENRE_NOT_FOUND("USER는 첫번째 우선 순위 장르를 지정하지 않았습니다"),
-
     REVIEW_TAG_NOT_FOUND("지정된 리뷰 태그가 존재하지 않습니다"),
-
     REVIEW_NOT_FOUND("리뷰를 찾을 수 없습니다"),
 
     /**
@@ -66,16 +61,5 @@ public enum ErrorCode {
      */
     INTERNAL_SERVER_ERROR("서버 내부 오류입니다.");
 
-
-
-
-
-
-
-
-
-
-
-
     private final String message;
 }
diff --git a/src/main/java/tavebalak/OTTify/genre/dto/request/GenreUpdateDTO.java b/src/main/java/tavebalak/OTTify/genre/dto/request/GenreUpdateDTO.java
new file mode 100644
index 00000000..a0a7ea67
--- /dev/null
+++ b/src/main/java/tavebalak/OTTify/genre/dto/request/GenreUpdateDTO.java
@@ -0,0 +1,14 @@
+package tavebalak.OTTify.genre.dto.request;
+
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import javax.validation.constraints.NotNull;
+
+@Getter
+@NoArgsConstructor
+public class GenreUpdateDTO {
+
+    @NotNull
+    private Long id;
+}
diff --git a/src/main/java/tavebalak/OTTify/genre/entity/UserGenre.java b/src/main/java/tavebalak/OTTify/genre/entity/UserGenre.java
index 9aed03c3..c9139df8 100644
--- a/src/main/java/tavebalak/OTTify/genre/entity/UserGenre.java
+++ b/src/main/java/tavebalak/OTTify/genre/entity/UserGenre.java
@@ -48,4 +48,8 @@ public static UserGenre create(User user, Genre genre, boolean isFirst) {
             .isFirst(isFirst)
             .build();
     }
+
+    public void changeGenre(Genre genre) {
+        this.genre = genre;
+    }
 }
diff --git a/src/main/java/tavebalak/OTTify/genre/repository/UserGenreRepository.java b/src/main/java/tavebalak/OTTify/genre/repository/UserGenreRepository.java
index d121279d..d05fc0e4 100644
--- a/src/main/java/tavebalak/OTTify/genre/repository/UserGenreRepository.java
+++ b/src/main/java/tavebalak/OTTify/genre/repository/UserGenreRepository.java
@@ -14,6 +14,7 @@
 public interface UserGenreRepository extends JpaRepository<UserGenre, Long> {
     Optional<UserGenre> findByUserIdAndIsFirst(Long userId, boolean isFirst);
     List<UserGenre> findByGenreId(Long genreId);
+
     @Query("select ug from UserGenre ug where ug.user.id =:userId and ug.isFirst = true")
     UserGenre find1stGenreByUserId(@Param("userId") Long userId);
 
@@ -26,6 +27,7 @@ public interface UserGenreRepository extends JpaRepository<UserGenre, Long> {
     @Query("select ug from UserGenre ug join fetch ug.genre where ug.user.id =:userId and ug.isFirst = false")
     List<UserGenre> find2ndGenreByUserIdFetchJoin(@Param("userId") Long userId);
 
-
     Optional<UserGenre> findByUserAndIsFirst(User user, boolean isFirst);
+
+    Optional<UserGenre> findByGenreIdAndUserIdAndIsFirst(@Param("genreId") Long genreId, @Param("userId") Long userId, boolean isFirst);
 }
diff --git a/src/main/java/tavebalak/OTTify/user/controller/UserController.java b/src/main/java/tavebalak/OTTify/user/controller/UserController.java
index 9d281c2d..a4733a37 100644
--- a/src/main/java/tavebalak/OTTify/user/controller/UserController.java
+++ b/src/main/java/tavebalak/OTTify/user/controller/UserController.java
@@ -15,6 +15,8 @@
 import tavebalak.OTTify.user.service.UserService;
 
 import java.util.List;
+import tavebalak.OTTify.genre.dto.request.GenreUpdateDTO;
+import tavebalak.OTTify.user.service.UserServiceImpl;
 
 @RestController
 @RequiredArgsConstructor
@@ -47,4 +49,18 @@ public BaseResponse<Long> updateUserProfile(@PathVariable("id") Long userId, @Va
     public BaseResponse<Long> updateUserOTT(@PathVariable("id") Long userId, @RequestBody List<UserOttUpdateDTO> updateRequestDTO) {
         return BaseResponse.success(userService.updateUserOTT(userId, updateRequestDTO));
     }
+
+    @PatchMapping("/{id}/1stGenre")
+    @ResponseStatus(HttpStatus.OK)
+    public BaseResponse update1stLikedGenre(@PathVariable("id") Long userId, @Validated @RequestBody GenreUpdateDTO updateRequestDto) {
+        userService.update1stGenre(userId, updateRequestDto);
+        return BaseResponse.success("성공적으로 1순위 장르가 업데이트 되었습니다.");
+    }
+
+    @PatchMapping("/{id}/2ndGenre")
+    @ResponseStatus(HttpStatus.OK)
+    public BaseResponse update2ndLikedGenre(@PathVariable("id") Long userId, @Validated @RequestBody GenreUpdateDTO updateRequestDTO) {
+        userService.update2ndGenre(userId, updateRequestDTO);
+        return BaseResponse.success("성공적으로 2순위 장르가 업데이트 되었습니다.");
+    }
 }
diff --git a/src/main/java/tavebalak/OTTify/user/repository/UserRepository.java b/src/main/java/tavebalak/OTTify/user/repository/UserRepository.java
index 18a45d9f..b6925115 100644
--- a/src/main/java/tavebalak/OTTify/user/repository/UserRepository.java
+++ b/src/main/java/tavebalak/OTTify/user/repository/UserRepository.java
@@ -1,13 +1,11 @@
 package tavebalak.OTTify.user.repository;
 
 import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.stereotype.Repository;
 import tavebalak.OTTify.common.constant.SocialType;
 import tavebalak.OTTify.user.entity.User;
 
 import java.util.Optional;
 
-@Repository
 public interface UserRepository extends JpaRepository<User, Long> {
     Optional<User> findByEmailAndSocialType(String email, SocialType socialType);
 
diff --git a/src/main/java/tavebalak/OTTify/user/service/UserService.java b/src/main/java/tavebalak/OTTify/user/service/UserService.java
index 13277bf1..6132cff0 100644
--- a/src/main/java/tavebalak/OTTify/user/service/UserService.java
+++ b/src/main/java/tavebalak/OTTify/user/service/UserService.java
@@ -4,6 +4,7 @@
 import tavebalak.OTTify.user.dto.Request.UserProfileUpdateDTO;
 import tavebalak.OTTify.user.dto.Response.UserOttListDTO;
 import tavebalak.OTTify.user.dto.Response.UserProfileDTO;
+import tavebalak.OTTify.genre.dto.request.GenreUpdateDTO;
 
 import java.util.List;
 
@@ -12,4 +13,6 @@ public interface UserService {
     UserOttListDTO getUserOTT(Long userId);
     Long updateUserProfile(Long userId, UserProfileUpdateDTO updateRequestDTO);
     Long updateUserOTT(Long userId, List<UserOttUpdateDTO> updateRequestDTO);
+    void update1stGenre(Long userId, GenreUpdateDTO updateRequestDTO);
+    void update2ndGenre(Long userId, GenreUpdateDTO updateRequestDTO);
 }
diff --git a/src/main/java/tavebalak/OTTify/user/service/UserServiceImpl.java b/src/main/java/tavebalak/OTTify/user/service/UserServiceImpl.java
index de1c4f1f..f2a4cc7e 100644
--- a/src/main/java/tavebalak/OTTify/user/service/UserServiceImpl.java
+++ b/src/main/java/tavebalak/OTTify/user/service/UserServiceImpl.java
@@ -25,6 +25,13 @@
 
 import java.util.*;
 import java.util.stream.Collectors;
+import tavebalak.OTTify.error.exception.NotFoundException;
+import tavebalak.OTTify.genre.dto.request.GenreUpdateDTO;
+import tavebalak.OTTify.genre.entity.Genre;
+import tavebalak.OTTify.genre.entity.UserGenre;
+import tavebalak.OTTify.genre.repository.GenreRepository;
+import tavebalak.OTTify.genre.repository.UserGenreRepository;
+import tavebalak.OTTify.user.repository.UserRepository;
 
 @Service
 @Transactional(readOnly = true)
@@ -39,6 +46,7 @@ public class UserServiceImpl implements UserService {
     private final ReviewRepository reviewRepository;
     private final LikedProgramRepository likedProgramRepository;
     private final UninterestedProgramRepository uninterestedProgramRepository;
+    private final GenreRepository genreRepository;
 
     @Override
     public UserProfileDTO getUserProfile(Long userId) {
@@ -141,6 +149,34 @@ public UserOttListDTO getUserOTT(Long userId) {
 
     @Override
     @Transactional
+    public void update1stGenre(Long userId, GenreUpdateDTO updateRequestDTO) {
+        UserGenre userGenre = userGenreRepository.findByUserIdAndIsFirst(userId, true)
+                .orElseThrow(() -> new NotFoundException(ErrorCode.ENTITY_NOT_FOUND));
+        Genre genre = genreRepository.findById(updateRequestDTO.getId())
+                .orElseThrow(() -> new NotFoundException(ErrorCode.GENRE_NOT_FOUND));
+
+        userGenre.changeGenre(genre);
+    }
+
+    @Override
+    @Transactional
+    public void update2ndGenre(Long userId, GenreUpdateDTO updateRequestDTO) {
+        // req로 들어온 id 값이 유효한 장르 id인지 확인
+        Genre genre = genreRepository.findById(updateRequestDTO.getId())
+                .orElseThrow(() -> new NotFoundException(ErrorCode.GENRE_NOT_FOUND));
+
+        // 조회된 UserGenre가 있을 경우 삭제 & 없을 경우 저장
+        userGenreRepository.findByGenreIdAndUserIdAndIsFirst(genre.getId(), userId, false).ifPresentOrElse(
+                ug -> userGenreRepository.delete(ug),
+                () -> userGenreRepository.save(
+                        UserGenre.builder()
+                                .genre(genre)
+                                .user(userRepository.findById(userId)
+                                        .orElseThrow(() -> new NotFoundException(ErrorCode.ENTITY_NOT_FOUND)))
+                                .build())
+        );
+    }
+
     public Long updateUserProfile(Long userId, UserProfileUpdateDTO updateRequestDTO) {
         User user = userRepository.findById(userId)
                 .orElseThrow(() -> new NotFoundException(ErrorCode.ENTITY_NOT_FOUND));